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5

4.Before Installation 

(Check the condition of installation site)

  

Check for any damage to components that may have occurred during transportation before installation.

  

Consult with the customer regarding the location of installation.

  

Do not install this Flex Vent 2" Kit in a place where it may be subject to falling objects, such as under shelves.

  

Flex Vent 2" Kit vent systems expand and contract slightly during heating cycles and must be installed 

according to supplied instructions.

Check that the following items are "(OK) Can be installed" before installation. 

If all items are "(OK) Can be installed", proceed to the next step, "6. Installation".

Check point

Can be installed(OK)

Cannot be installed(NG)

Mark "

" if each 

condition is matched.

1. Vent system.

Vent system is used by 1 appliance only

Common vent

2. No Screws or 

nails protruding 

within the B-Vent

No

Yes

(If  Yes to protruding screws or nails, 

flex vent cannot be installed.)

CAUTION

 

 

PAUSE FOR A MOMENT

Verify if the installation of a rain cap of different appearance will conflict with Home Owners 

Associations rules to prevent future issues.
If NOT, contact customer service at 1-866-766-7489 to purchase optional installation kit for 

the existing Rain Cap.

4

  

Flex Vent 2" Kit is designed only for installation inside of B-Vent wall.  Do not use it for other  installation method.  

   Also do not use it outdoor.

  Only approved for use with the designated B-Vent manufactures.

  If the Rain Cap and B-Vent itself are damaged by corrosion, it must be replaced with new ones.

  Before installation, make sure no nails or screws have penetrated the inner B-Vent wall where the flexible vent will be installed.  

Those obstructions may damage the flexible vent and may result in fires, property damage or exposure to Carbon Monoxide. 

・ 

Do not reuse the flexible vent once it has been installed, removal of the vent may have caused damage to the flexible vent. 

   Keep Flex vent at a temperature greater than 40

̊

F(5

).  

       Material temperature is not less than 40

̊

F(5

)  during installation.

       Damage will occur if handled or installed at lower temperatures.

  If the temperature if below 40

̊

F(5

) it's recommended that you store the flexible vent in a warm room or car for 30 minutes. 

  If you find that the flexible vent is still stiff, you may need to use a hair dryer and warm both ends of the pipe to prevent breakage.

  Make sure components are kept under these following conditions.

     ※

  Clean and dry place.

     ※

  Above 40

̊

F(5

)

     ※

  Keep out of direct sunlight.

  Minimum bend radius should be more than 7 inch.

   Handle the flexible vent carefully.

  Dropping, Crushing and Stacking may cause damage, and may result in fires, property damage or exposure to Carbon Monoxide.

   Flex Vent 2" Kit cannot be painted.

   Avoid places where  open flame are common, such as those where gasoline, benzene and adhesives are handled, or places in 

which corrosive gases (ammonia, chlorine, sulfur, ethylene compounds, acids) are present.

   Avoid installation in places where dust or debris will accumulate.

      Dust may block the air-supply opening, causing the performance of the device fan to drop and incomplete combustion may occur as 

a result.

   Avoid installation in places where special chemical agents (e.g., hair spray or spray detergent) are used.

   For your safety, do not attempt to work on a rooftop until safety precautions have been identified and proper fall safety measures 

have been taken, including the use of ladders or stairways, and personal protective equipment (PPE).

   Installation in windy or wet conditions require additional precautions. Follow local safety regulations.

3.General Safety

   If similar flexible vent has already been installed, it must be replaced with this designated new Flex Vent Kit.

DANGER

WARNING

Checkup

40°F
(5°C)

r>7 inch

Summary of Contents for EZ2FVK-1

Page 1: ...n may result causing property damage personal injury or death Do not install only with the EZTR Start up Guide Read this manual also before installation Requests to Installers This manual is for the v...

Page 2: ...model manufactured by others Flex Vent 2 Kit can be installed at zero clearance to combustible materials Appliances can be started up immediately after Flex Vent 2 Kit is installed and inspected Flex...

Page 3: ...support 1 Universal Rain Cap 1 Bag Step 3 Rigid 45 Elbow SET 1 Flex 2 Vent Gasket 1 Fastening Screws 2 Aluminum tape 1 Part Shape Q ty Installation Manual This document 1 EZTR 25 Feet Start Up Guide 1...

Page 4: ...pt under these following conditions Clean and dry place Above 40 F 5 Keep out of direct sunlight Minimum bend radius should be more than 7 inch Handle the flexible vent carefully Dropping Crushing and...

Page 5: ...ollowing items are OK Can be installed before installation If all items are OK Can be installed proceed to the next step 6 Installation Check point Can be installed OK Cannot be installed NG Mark if e...

Page 6: ...ent diameter 3 or 4 5 or larger 5 Horizontal distance between B Vent connection from the ceiling and the unit is no more than 5ft 5ft or less More than 5 ft 6 Vent length from the top of unit to the r...

Page 7: ...ot be installed NG Mark if each condition is matched 7 Ambient temperature where unit is installed More than 40 5 40 5 or less Refer to page 4 8 Accessibility to Rain Cap Can access Rain Cap Cannot ac...

Page 8: ...rectly and safely The numbers before the names of the components are corresponding to the same component names as in step 6 Installation Flex Sleeve Base Junction Support Flex Pipe 2 Top Flex Support...

Page 9: ...ou need more than 25 feet of Flex pipe contact Noritz America 1 866 766 7489 Max allowable 45 degree elbows B Vent are 2 elbows Not including Rigid 45 Elbow Set No 90 elbows B Vent Only when the all c...

Page 10: ...er heater 3 Use a measuring tape to measure from the bottom of the B Vent to the roof termination to get the total length of the vent run The Measured vent run length will be used in procedure No 23 l...

Page 11: ...of B Vent 5 Insert Base Junction Support to the bottom of B Vent that is sticking out from the ceiling or A Base Junction Adapter Firmly tighten Base Junction Support with A B Vent Clamp be careful no...

Page 12: ...straight B Vent runs Flex Feeder prevents debris from falling into the Flex Pipe 2 Be sure to do When pushing Flex Pipe 2 through the B Vent if there is unusual feeling touching the bump of screw etc...

Page 13: ...below Step 2 Procedure 9 14 Use this Image to check for correct assembly of the components 9 Grab Bag Labeled Step 2 and necessary tools for this step of the installation Climb up on the roof and acc...

Page 14: ...r to mark the original position of the Flex Pipe 2 at B Vent s upper tip Marker 12 Slide in the Top Flex Support to the Flex Pipe 2 Top Flex support Mark is very important for the function Do not skip...

Page 15: ...p All cuts must be made at right angle to the pipe All field cuts must be deburred Take precaution not to drop debris into Flex Pipe 2 In case debris is dropped remove from the lower end of the Flex P...

Page 16: ...L shown below Follow the below chart and install accordingly Equipment installation upper limit height chart by horizontal distance Horizontal distance L 0 1 2 3 4 5 More than height H 2 2 2 2 6 3 3 P...

Page 17: ...ppropriate length Marker Point If it interferes with water and hot water piping adjust Rigid 45 Elbow Set s angle so that it does not interfere If the contact is unavoidable take measures such as inse...

Page 18: ...he below figure Point When determining the cut length take note on the 2 points listed below Point Determine the proper length not giving too much tension to both Base Junction Support and Rigid 45 El...

Page 19: ...eeds to be cut it should be cut while in its compressed state 19 Firmly tighten B Flex Sleeve Clamp of Base Junction Support but be careful not to tighten too much as it may distort the Flex Sleeve an...

Page 20: ...vely locked to the equipment s vent connector pipe Insert the Flex Pipe 2 from the previous procedure into the Rigid 45 Elbow Set Rigid 45 Elbow Set Step 3 Work where equipment is installed Make sure...

Page 21: ...edure No 3 in addition to the distance from the water heater Calculate the total vent length to determine the dip switch setting Vent length X total length of B Vent measured in procedure No 3 Y the d...

Page 22: ...crews Aluminum tape Step 3 Work where equipment is installed Pay attention not to get injured from the sharp edge of Flex Sleeve WARNING Point Check and see if Flex Sleeve is firmly fixed 7 Maintenanc...

Page 23: ...URC 1 Top Flex Support for EZ2FVK EZ2FVK TFS 25 Feet Flex Pipe 2 LE EZ2FVP25 1 Base Junction Adapter Set EZ2FVBJADS 1 Base Junction Support w o hole EZ2FVBJS 1 Flex Vent 2 Sleeve EZ2FVS Flex Vent 2 Ri...

Page 24: ...Flex Feeder LE EZ2FVF 1 Flex Vent 2 Kit 25 Feet Installation Manual This document EZ2FVK 1 LT EZTR 25 Feet Start Up Guide EZ2FVK 1 SUG Packing Box for Flex Vent 2 Kit 25 Feet EZ2FVK 1 BOX No indicate...

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